31220020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120077}}^1$

素因数の和:120099

約数の個数: 24

約数和(自身を含む): 70605864

約数和(自身を除く): 39385844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120077, 240154, 480308, 600385, 1200770, 1561001, 2401540, 3122002, 6244004, 7805005, 15610010, 31220020]

約数ペア:

[(1, 31220020), (2, 15610010), (4, 7805005), (5, 6244004), (10, 3122002), (13, 2401540), (20, 1561001), (26, 1200770), (52, 600385), (65, 480308), (130, 240154), (260, 120077)]